What is the author's style in The White Horses of Vienna by Kay Boyle?

"The White Horses of Vienna is divided into three parts. While these parts follow a linear order, each section presents different types of information. Part I provides pertinent information about the doctor and his wife as well as how a Jewish doctor fares in a thoroughly anti-Semitic community. Part II presents the central metaphor of the story as well as the doctor's puppet show. Part III includes the story of the doctor's arrest.